The so-called hydraulic hose refers to a high-pressure hose with a steel wire braided or steel wire winding structure. It has particularly harsh requirements on the types and indicators of the rubber materials used, especially the inner hose. Then, as a new type of raw material to reduce the cost of various rubber products instead of the original rubber, can reclaimed rubber be used in the production of hydraulic hose, what kinds of reclaimed rubber can better reduce the production cost of hydraulic hose while ensuring the quality and service life of hydraulic hose products?

hydraulic hose is mainly composed of inner layer glue, middle layer glue, multi-layer reinforcement layer and outer layer glue. The inner layer glue needs to transport medium, bear pressure and protect steel wire from erosion. The outer layer glue protects the reinforcement layer from damage. The reinforcement layer is used as a skeleton material to ensure the service pressure of hydraulic hose.

In the actual production process, rubber products enterprises mostly choose nitrile rubber as the main material of the inner rubber, which is used together with high-performance synthetic resin. For some hydraulic hoses that need to transport special media, ethylene propylene rubber, butyl rubber or other special rubber are used. For example, hydraulic hoses that transport high-temperature steam need to use butyl rubber, which is impossible for general-purpose rubber. In reclaimed rubber products, hb nitrile rubber reclaimed rubber processed from nitrile water glue, sub-brand nitrile rubber and waste nitrile gloves and butyl reclaimed rubber processed from waste butyl rubber products can replace nitrile rubber and butyl rubber in the production of inner rubber of hydraulic hose. The rubber used for the outer rubber of

hydraulic hose is generally determined by the use environment of the hose. For example, the outer rubber of hydraulic hose working at minus 60 degrees Celsius can use nitrile rubber with low acrylonitrile content, and chlorosulfonated polyethylene rubber ensures the low temperature resistance of vulcanized rubber. The reinforcement layer is wound with steel wire as the skeleton layer material, giving the hydraulic hose good strength and rigidity.